hadoop-common-dev mailing list archives

[jira] Created: (HADOOP-6490) Path.normalize should use StringUtils.replace in favor of String.replace

Date

Wed, 13 Jan 2010 02:47:54 GMT

Path.normalize should use StringUtils.replace in favor of String.replace
------------------------------------------------------------------------
Key: HADOOP-6490
URL: https://issues.apache.org/jira/browse/HADOOP-6490
Project: Hadoop Common
Issue Type: Bug
Affects Versions: 0.20.1
Reporter: Zheng Shao
in our environment, we are seeing that the JobClient is going out of memory because Path.normalizePath(String)
is called several tens of thousands of times, and each time it calls "String.replace" twice.
java.lang.String.replace compiles a regex to do the job which is very costly.
We should use org.apache.commons.lang.StringUtils.replace which is much faster and consumes
almost no extra memory.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.